Seacology
Seacology protects the threatened species and habitats of the worlds islands by working directly with local people to both conserve their natural resources and improve their quality of life.
Seacology at a glance
In short: Seacology gave $96K across 5 grants in 2025 (avg $19K), top state Washington. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $96,138
- +121.7% vs 2024
- Grants made (2025)
- 5
- +66.7% vs 2024
- Average grant
- $19,228
- +33.0% vs 2024
- Median grant
- $11,700
- Total assets
- $12,038,045
- -4.1% vs 2024
- Primary geography
- Washington (42% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Seacology funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
The largest 2025 recipient was Coast Salish Youth Coalition ($40K). Together the top 5 received $96K.
Grant Size Distribution
15 grants across all recorded years
The most common grant size was under $50K: 15 grants of 15 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
Cities
How Seacology gives
- Giving grew 163% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $8K (2019) to $96K (2025). In 2025 it made 5 grants totaling $96K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Coast Salish Youth Coalition Anacortes, WA | Eelgrass Restoration | $40,138 |
| Guanacaste Dry Forest Conserv Hinesburg, VT | Ranger Station Repair | $27,800 |
| Mad Dog Initiative Greenbrier, AR | Primary School and Furnishings | $11,700 |
| Land Empowerment Animals Peop Weed, CA | Seacology Prize | $10,000 |
| Reef Renewal Fdn Curacao Larchmont, NY | Ecotourism Services | $6,500 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $12,038,045 | $2,769,333 | $3,577,746 | $96,138 | 5 | $905,948 |
| 2024 | $12,559,203 | $2,852,831 | $3,140,957 | $43,360 | 3 | $721,692 |
| 2023 | $12,699,669 | $4,599,548 | $3,159,291 | $72,470 | 3 | $255,510 |
| 2022 | $10,148,588 | $3,256,392 | $2,820,441 | $36,500 | 1 | $296,036 |
| 2021 | $10,971,501 | $3,747,320 | $2,650,959 | $61,100 | 3 | $895,510 |
| 2020 | $9,816,635 | $3,266,402 | $2,331,008 | $27,672 | 2 | $302,867 |
| 2019 | $8,011,031 | $2,606,916 | $2,596,410 | $7,585 | 1 | $211,436 |
About Seacology
Based on IRS filings
Seacology is a public charity, based in Berkeley, CA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $12.0M in total assets. In 2025, it awarded 5 grants totaling $96K. Net investment income was $906K.
Leadership & Key People
Officers and directors from IRS filings
Seacology is led by Duane Silverstein, Executive Director on every filing since 2019; 5 of 19 officers listed in 2025 are compensated.
Officers on the 2025 filing
Duane Silverstein
Executive Director
On filings since 2019
40 hrs/week
$215K (2019) → $264K (2025)
Douglas Herst
President
On filings since 2019
1 hr/week
No compensation reported
Paul Cox
Chairman
On filings since 2019
3 hrs/week
No compensation reported
Jake Walker
Director
On filings since 2019
2 hrs/week
No compensation reported
Michael Staffieri
Director
On filings since 2019
2 hrs/week
No compensation reported
Michael Ward
Director
On filings since 2019
1 hr/week
No compensation reported
Peter Read
Director
On filings since 2019
1 hr/week
No compensation reported
Scott Halsted
Director
On filings since 2019
1 hr/week
No compensation reported
Rachel Dibner
Director
On filings since 2023
1 hr/week
No compensation reported
Karen Yarkin
Director
On filings since 2024
1 hr/week
No compensation reported
Kevin Claassen
Acct. Manager
On filings since 2019
40 hrs/week
$92K (2019) → $121K (2025)
Karen Peterson
Senior Manager Spec. Init.
On filings since 2022
40 hrs/week
$102K (2022) → $118K (2025)
Erin Coyne
Inst. Giving Officer
On filings since 2023
40 hrs/week
$102K (2023) → $111K (2025)
Mary Randolph
Program Manager
New on the 2025 filing
40 hrs/week
$104K (2025)
Kimberly Myers Hewlett
Vice President
On filings since 2019
1 hr/week
No compensation reported
Kristin Reed
Vice President
On filings since 2019
2 hrs/week
No compensation reported
Sandie Tillotson
Vice President
On filings since 2019
1 hr/week
No compensation reported
Scott Wilson
Treasurer
Director → Treasurer, 2023
On filings since 2019
2 hrs/week
No compensation reported
Kenneth A. Murdock
Vice Chair
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (9)
- Former: Ken Murdock (2019–2024) — Vice Chair
- Former: David Holland (2020–2024) — Director
- Former: Masayuki Kishimoto (2019–2023) — Director
- Former: Shanna Jamieson (2020–2023) — Director
- Former: Marsha Garces Williams (2019–2021) — Director
- Former: Sonia Toledo (2020–2021) — Director
- Former: Donald Arntz (2020) — Director
- Former: Don Arntz (2019) — Director
- Former: Suzanna Jamieson (2019) — Treasurer
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $264K, to Duane Silverstein (Executive Dir.). 5 officers or directors reported compensation on that filing.
Frequently asked questions about Seacology
How much does Seacology give each year?
Seacology gave $96K across 5 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $43K across 3 grants.
What is Seacology's typical grant size?
Seacology's median grant in 2025 was $11,700, and its average grant was $19,228, across 5 grants on its 2025 IRS Form 990.
Where does Seacology give grants?
Seacology's top state is Washington, with 42% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were Vermont (29%) and Arkansas (12%).
Does Seacology give general operating support?
Not in 2025: none of the 5 grants with a stated purpose on Seacology's 2025 IRS Form 990 were described as general or operating support.
Who are Seacology's largest grantees?
Seacology's largest 2025 grantees include Coast Salish Youth Coalition ($40,138), Guanacaste Dry Forest Conserv ($27,800) and Mad Dog Initiative ($11,700), according to its 2025 IRS Form 990. Together they received 83% of its itemized 2025 grant dollars.
How large is Seacology?
Seacology reported $12.0M in total assets on its 2025 IRS Form 990. Its revenue that year was $2.8M.
What is Seacology's EIN?
Seacology's EIN (Employer Identification Number) is 87-0495235. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS September 23, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS October 17, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS July 12, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS September 13, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS September 10, 2025)
- Added Form 990 for fiscal year 2019 (received by the IRS August 13, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS July 23, 2026)
- IRS filings on file for fiscal years 2020–2024
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